As someone that all that he knew about perspective was vanishing points exist and meet at the horison and that there can be 2 points and then its called 2 point pesepective it has teached me a lot of usefull things like:

-Avoiding warped perspective (i did not understand the method shown and i personally find the 60 degree cone of vision method eazier to understand https://www.youtube.com/watch?v=RsbzCHLsQuQ)

-Changing eye level

-Placing figures (or anything that you want to be of a specific height relative to [INSERT THING HERE])

-Giving items different orientation (i think i got this from the problems on page 46 , I remember there was a problem where the author told the reader to stack a bunch of bricks togheer in different orientations and draw them using different VPs but i think thats a false memory because i cant find that part)

-Interiours

-Finding the center

-Spacing in pespective (the thing i hoped to find here , its
on page 113)

-dividing a surface (and drawing a checkerboard)

-Reflections (they use the same VPs as the object they are reflecting)


And other things i most likely forgot i picked up from here yet i did

A must for every beginner level art student to read.
The book is what its title says. The author has explained the rules of perspective drawing in very simple and easy to comprehend manner. Diagrams, drawings and exercises all add up to make foundation of drawing in perspective strong.